Cork is an ideal material to be expansion joints because of the characteristics of flexibility and elasticity. The typical use of composition cork strips is to be the expansion joint spacers for wood flooring. The standard dimensions of the cork strips for expansion joint are as below.

900x8x10mm           915x8x10mm
900x10x10mm         915x10x10mm
900x10x15mm         915x10x15mm
900x10x22mm         915x10x22mm
900x15x22mm         915x15x22mm

As far as we know, natural cork strips also act as the joints for some musical instrument.

Cork strips with tongues and grooves for custom design are available at LEECORK.